formbook | a541b7ffad0c788b1b80d8476339627980d5d4142ffb4d3b8a89b90beb0e95ea

Analysis

max time kernel
149s
max time network
162s
platform
windows10-2004_x64
resource
win10v2004-20260513-en
resource tags

arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
submitted
02/06/2026, 12:29

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General

Target
tmp3vt3oqo0.js
Size 2.0MB
Sample260602-pn69haev2r
SHA256 a541b7ffad0c788b1b80d8476339627980d5d4142ffb4d3b8a89b90beb0e95ea
MD5 47a750d084284a01ba7ad138ef8c6f16
SHA1 b65b6dd6b6f5962334bda884af8ccffc400ac6be
SHA512 b8bb904d2ecdbbdda302452b227bdf07633a442ccfbea8d7df2d074b2275b4804ed4a5657973e88c0cbf15c949fdbd7437440b03595bd89b0c605a1d219032f5
SSDEEP 24576:b3Iy7MYu8Bv5mfDQoHKfc+EZKGvmAGM8tT54wQp7udJ+4XQ6NYiewcFE1DC7Cqjm:bYCucm8oIcxHGJTk4XjKBby1Dacum
TLSH
T120A5025689C43FA9CFE85A1D40FE1A0E63F04A8B445AB54AFF33BD4BBFA76004117199
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

adware collection defense_evasion discovery execution formbook rat spyware stealer trojan

Malware Config

Signatures

Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/912-18-0x00000000013A0000-0x00000000013E6000-memory.dmp	family_formbook
behavioral2/memory/912-20-0x00000000013A0000-0x00000000013E6000-memory.dmp	family_formbook
behavioral2/memory/912-25-0x00000000013A0000-0x00000000013E6000-memory.dmp	family_formbook
behavioral2/memory/2532-26-0x00000000001E0000-0x0000000000223000-memory.dmp	family_formbook

Badlisted process makes network request 1 IoCs

Network request originating from process or tool commonly abused by malware.

flow	pid	Process
46	4936	wscript.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
8	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\Control Panel\International\Geo\Nation	wscript.exe

Accesses Microsoft Outlook profiles 1 TTPs 1 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	timeout.exe

ConfuserEx .NET packer 1 IoCs

Detects ConfuserEx .NET packer.

resource	yara_rule
behavioral2/memory/8-12-0x00000287634E0000-0x00000287634FA000-memory.dmp	ConfuserEx

Suspicious use of SetThreadContext 12 IoCs

description	pid	Process	procid_target
PID 8 set thread context of 912	8	powershell.exe	95
PID 912 set thread context of 4936	912	aspnet_compiler.exe	84
PID 912 set thread context of 2532	912	aspnet_compiler.exe	97
PID 8 set thread context of 4632	8	powershell.exe	104
PID 2532 set thread context of 4936	2532	timeout.exe	84
PID 8 set thread context of 4360	8	powershell.exe	108
PID 8 set thread context of 3036	8	powershell.exe	113
PID 8 set thread context of 2156	8	powershell.exe	118
PID 8 set thread context of 1272	8	powershell.exe	121
PID 2532 set thread context of 4460	2532	timeout.exe	119
PID 8 set thread context of 4156	8	powershell.exe	124
PID 2532 set thread context of 2024	2532	timeout.exe	128

Command and Scripting Interpreter: JavaScript 1 TTPs
execution

JavaScript
T1059.007
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

Delays execution with timeout.exe 1 IoCs

defense_evasion

pid	Process
2532	timeout.exe

Kills process with taskkill 1 IoCs

defense_evasion

pid	Process
2104	taskkill.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	timeout.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

pid	Process
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
912	aspnet_compiler.exe
912	aspnet_compiler.exe
912	aspnet_compiler.exe
912	aspnet_compiler.exe
8	powershell.exe
2532	timeout.exe
2532	timeout.exe
2532	timeout.exe
2532	timeout.exe
8	powershell.exe
4632	aspnet_compiler.exe
8	powershell.exe
8	powershell.exe
4360	aspnet_compiler.exe
8	powershell.exe
3036	aspnet_compiler.exe
8	powershell.exe
2156	aspnet_compiler.exe
8	powershell.exe
8	powershell.exe
8	powershell.exe
1272	aspnet_compiler.exe
8	powershell.exe
4156	aspnet_compiler.exe

Suspicious behavior: MapViewOfSection 9 IoCs

pid	Process
912	aspnet_compiler.exe
4936	wscript.exe
4936	wscript.exe
2532	timeout.exe
2532	timeout.exe
2532	timeout.exe
2532	timeout.exe
2532	timeout.exe
2532	timeout.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	8	powershell.exe
Token: SeDebugPrivilege	2104	taskkill.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 4936 wrote to memory of 8	4936	wscript.exe	87
PID 8 wrote to memory of 1996	8	powershell.exe	90
PID 8 wrote to memory of 3220	8	powershell.exe	91
PID 8 wrote to memory of 3828	8	powershell.exe	92
PID 8 wrote to memory of 5072	8	powershell.exe	93
PID 8 wrote to memory of 3768	8	powershell.exe	94
PID 8 wrote to memory of 912	8	powershell.exe	95
PID 8 wrote to memory of 912	8	powershell.exe	95
PID 8 wrote to memory of 912	8	powershell.exe	95
PID 4936 wrote to memory of 2532	4936	wscript.exe	97
PID 8 wrote to memory of 4632	8	powershell.exe	104
PID 8 wrote to memory of 4632	8	powershell.exe	104
PID 8 wrote to memory of 4632	8	powershell.exe	104
PID 8 wrote to memory of 4360	8	powershell.exe	108
PID 8 wrote to memory of 4360	8	powershell.exe	108
PID 8 wrote to memory of 4360	8	powershell.exe	108
PID 8 wrote to memory of 3036	8	powershell.exe	113
PID 8 wrote to memory of 3036	8	powershell.exe	113
PID 8 wrote to memory of 3036	8	powershell.exe	113
PID 8 wrote to memory of 2156	8	powershell.exe	118
PID 8 wrote to memory of 2156	8	powershell.exe	118
PID 8 wrote to memory of 2156	8	powershell.exe	118
PID 2532 wrote to memory of 4460	2532	timeout.exe	119
PID 8 wrote to memory of 4588	8	powershell.exe	120
PID 8 wrote to memory of 1272	8	powershell.exe	121
PID 8 wrote to memory of 1272	8	powershell.exe	121
PID 8 wrote to memory of 1272	8	powershell.exe	121
PID 8 wrote to memory of 4156	8	powershell.exe	124
PID 8 wrote to memory of 4156	8	powershell.exe	124
PID 8 wrote to memory of 4156	8	powershell.exe	124
PID 4936 wrote to memory of 2104	4936	wscript.exe	125
PID 2532 wrote to memory of 2024	2532	timeout.exe	128

outlook_office_path 1 IoCs

description	ioc	Process
Key enumerated	\REGISTRY\USER\S-1-5-21-889581200-2041691093-2048517887-1000\SOFTWARE\Microsoft\Office\16.0\Outlook\Profiles\Outlook	timeout.exe

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\tmp3vt3oqo0.js
1⤵
- Badlisted process makes network request
- Checks computer location settings
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:4936
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  powershell.exe -ExecutionPolicy Bypass -NoProfile -WindowStyle Hidden -File "C:\Temp\ps_7laHKnTe9Hu2_1780403390910.ps1"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:8
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:1996
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3220
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3828
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:5072
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:3768
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:912
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4632
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4360
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3036
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2156
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    PID:4588
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1272
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4156
- C:\Windows\SysWOW64\timeout.exe
  "C:\Windows\SysWOW64\timeout.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Delays execution with timeout.exe
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  - outlook_office_path
  PID:2532
- - C:\Program Files\Google\Chrome\Application\chrome.exe
    "C:\Program Files\Google\Chrome\Application\chrome.exe"
    3⤵
    PID:4460
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2024
- C:\Windows\System32\taskkill.exe
  "C:\Windows\System32\taskkill.exe" /f /im wscript.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:2104

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:2660

C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe
"C:\Program Files\Google\Chrome\Application\140.0.7339.81\elevation_service.exe"
1⤵
PID:116

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

JavaScript

T1059.007

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

ps_7laHKnTe9Hu2_1780403390910.ps1

Path C:\Temp\ps_7laHKnTe9Hu2_1780403390910.ps1
Size 1.5MB
SHA256 6f52da3fdfb1e1500b18955235c8ffae291872f10071236671419ebd7db7baa0
MD5 510dba9a84e72004f4ca4c34efe0875e
SHA1 64788c302fc784998801ac832864fdfc9f94014e
SHA512 af2bd8554ede661e5dd60878ec3838cae749543af451de95e64a6d37868d1691dabcd44612012401b192c550839ef405a86f893779cce46ed48b565e892fe1d7
SSDEEP 24576:t8kzwY4Ylbc2CUXI4Wl9a2fcd4Hrwjpmyeh1PikX+DRb2K0bgCBj1PQSPaBdUtb1:t8ilhSDvNrwwQPlb2agjYB0gg
TLSH
T10B6523317EEBFDFA2440561CA1BEFE7952E37BF2A02D9093C0B15087048D79A8616677
MD5 SHA1 SHA512 SSDEEP TLSH

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__PSScriptPolicyTest_rlbfzulg.1zk.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rlbfzulg.1zk.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
TLSH
T177A02228CC303B200020C0080A000002C00B800C080C8C0220000A00B20B820002F080
MD5 SHA1 SHA512 TLSH

Submit Download

memory/8-1-0x00000287612F0000-0x0000028761300000-memory.dmp

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memory/8-2-0x0000028763370000-0x0000028763392000-memory.dmp

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memory/8-11-0x00000287612F0000-0x0000028761300000-memory.dmp

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memory/8-12-0x00000287634E0000-0x00000287634FA000-memory.dmp

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memory/8-13-0x0000028748CA0000-0x0000028748CA6000-memory.dmp

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memory/8-14-0x00000287612F0000-0x0000028761300000-memory.dmp

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memory/8-15-0x00000287612F0000-0x0000028761300000-memory.dmp

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memory/8-23-0x00000287612F0000-0x0000028761300000-memory.dmp

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memory/8-21-0x00000287612F0000-0x0000028761300000-memory.dmp

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memory/8-17-0x00000287612F0000-0x0000028761300000-memory.dmp

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memory/912-19-0x0000000001A40000-0x0000000001D8A000-memory.dmp

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memory/912-20-0x00000000013A0000-0x00000000013E6000-memory.dmp

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memory/912-18-0x00000000013A0000-0x00000000013E6000-memory.dmp

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memory/912-16-0x0000000000400000-0x0000000000446000-memory.dmp

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memory/912-25-0x00000000013A0000-0x00000000013E6000-memory.dmp

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memory/2024-43-0x0000020AFD060000-0x0000020AFD10A000-memory.dmp

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memory/2532-24-0x00000000001E0000-0x0000000000223000-memory.dmp

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memory/2532-26-0x00000000001E0000-0x0000000000223000-memory.dmp

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memory/4460-37-0x0000014969690000-0x000001496976A000-memory.dmp

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memory/4936-22-0x0000000000A40000-0x0000000002B6C000-memory.dmp

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memory/4936-28-0x0000000000A40000-0x0000000002B6C000-memory.dmp

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memory/4936-29-0x0000020C96B20000-0x0000020C96BD5000-memory.dmp

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memory/4936-39-0x0000020C96B20000-0x0000020C96BD5000-memory.dmp

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